html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video ,input{
	margin: 0;
	padding: 0;
	border: 0;
}
ul,li{
	list-style: none;
}
input,select,textarea{
	outline: none;
	background: none;
}
.clearfloat:after{
	content: '';
	display: block;
	clear: both;
}
a{
	text-decoration: none;
	color: #666666;
}
*{
	font-size: 12px;
}
.hide{
	display: none;
}
.show{
	display: block ;
}
.pull_left{
	float: left;
}
.pull_right{
	float: right;
}

